This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 3 | 3 |
| 4 | 7 |
| 5 | 18 |
| 6 | 44 |
| 7 | 98 |
| 8 | 199 |
| 9 | 373 |
| 10 | 654 |
| 11 | 1085 |
| 12 | 1719 |
| 13 | 2620 |
| 14 | 3864 |
| 15 | 5540 |
| 16 | 7751 |
| 17 | 10615 |
| 18 | 14266 |
| 19 | 18855 |
| 20 | 24551 |
| 21 | 31542 |
| 22 | 40036 |
| 23 | 50262 |
| 24 | 62471 |
| 25 | 76937 |
| 26 | 93958 |
| 27 | 113857 |
| 28 | 136983 |
| 29 | 163712 |
| 30 | 194448 |
| 31 | 229624 |
| 32 | 269703 |
| 33 | 315179 |
| 34 | 366578 |
| 35 | 424459 |
| 36 | 489415 |
| 37 | 562074 |
| 38 | 643100 |
| 39 | 733194 |
| 40 | 833095 |
| 41 | 943581 |
| 42 | 1065470 |
| 43 | 1199621 |